CA1264841A - Digital device for the in-line measurement of background noise for mti radar with suppression of samples not originating from noise - Google Patents
Digital device for the in-line measurement of background noise for mti radar with suppression of samples not originating from noiseInfo
- Publication number
- CA1264841A CA1264841A CA000511240A CA511240A CA1264841A CA 1264841 A CA1264841 A CA 1264841A CA 000511240 A CA000511240 A CA 000511240A CA 511240 A CA511240 A CA 511240A CA 1264841 A CA1264841 A CA 1264841A
- Authority
- CA
- Canada
- Prior art keywords
- output
- noise
- background noise
- input coupled
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005259 measurement Methods 0.000 title claims abstract description 9
- 230000001629 suppression Effects 0.000 title abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- PYKLUAIDKVVEOS-RAXLEYEMSA-N (e)-n-(cyanomethoxy)benzenecarboximidoyl cyanide Chemical compound N#CCO\N=C(\C#N)C1=CC=CC=C1 PYKLUAIDKVVEOS-RAXLEYEMSA-N 0.000 description 1
- 238000012935 Averaging Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
- G01S13/522—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves
- G01S13/524—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi
- G01S13/5246—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi post processors for coherent MTI discriminators, e.g. residue cancellers, CFAR after Doppler filters
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT23262/85A IT1200902B (it) | 1985-12-18 | 1985-12-18 | Metodo per la misurazione in-linea de rumore di fondo per radar mti con soppressione dei campioni non provenienti dal rumore,e dispositi vo digitale per l'attuazione del metodo |
| IT23262A/85 | 1985-12-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1264841A true CA1264841A (en) | 1990-01-23 |
Family
ID=11205410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000511240A Expired - Lifetime CA1264841A (en) | 1985-12-18 | 1986-06-10 | Digital device for the in-line measurement of background noise for mti radar with suppression of samples not originating from noise |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4754278A (it) |
| EP (1) | EP0226548A3 (it) |
| CA (1) | CA1264841A (it) |
| IT (1) | IT1200902B (it) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU651663B2 (en) * | 1991-03-11 | 1994-07-28 | Commonwealth Of Australia, The | Back-scatter sounding |
| EP0650600A4 (en) * | 1991-05-02 | 1996-07-03 | Commw Of Australia | MEASURING RF BACKGROUND NOISE IN AN RF ENVIRONMENT. |
| JPH09145829A (ja) * | 1995-11-28 | 1997-06-06 | Mitsubishi Electric Corp | レーダ信号処理装置 |
| US7483501B1 (en) | 2004-02-13 | 2009-01-27 | The United States Of America As Represented By The Secretary Of The Army | System and method for radio receiver RF background noise estimation |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3761922A (en) * | 1971-10-12 | 1973-09-25 | Hughes Aircraft Co | Digital mean level detector |
| US3778822A (en) * | 1972-04-27 | 1973-12-11 | Gen Electric | Sum-rank normalized detection apparatus |
| US3995270A (en) * | 1975-06-16 | 1976-11-30 | The United States Of America As Represented By The Secretary Of The Navy | Constant false alarm rate (CFAR) circuitry for minimizing extraneous target sensitivity |
| US4031364A (en) * | 1975-11-10 | 1977-06-21 | Hughes Aircraft Company | Multiple moment video detector |
| DE2840938A1 (de) * | 1978-09-20 | 1980-03-27 | Siemens Ag | Puls-doppler-radarempfaenger mit mti- filter und stoerungsunterdrueckungsschaltungen |
| US4213127A (en) * | 1979-01-31 | 1980-07-15 | The United States Of America As Represented By The Secretary Of The Air Force | Doubly adaptive CFAR apparatus |
| US4249177A (en) * | 1979-05-03 | 1981-02-03 | The United States Of America As Represented By The Secretary Of The Air Force | Target discrimination apparatus |
| DE3012036C2 (de) * | 1980-03-28 | 1982-06-24 | Siemens AG, 1000 Berlin und 8000 München | Puls-Doppler-Radar mit einer CFAR-Schwelle |
| US4360811A (en) * | 1980-10-20 | 1982-11-23 | Hughes Aircraft Company | Adaptive zero mean system for controlling noise false alarm rate |
| DE3222489C2 (de) * | 1982-06-15 | 1987-03-26 | Siemens AG, 1000 Berlin und 8000 München | Puls-Doppler-Radargerät mit einem Pulslängen-Diskriminator |
| FR2589586B1 (fr) * | 1984-01-27 | 1988-04-08 | Thomson Csf | Procede et dispositif de mesure des signaux de bruit d'un recepteur radar |
-
1985
- 1985-12-18 IT IT23262/85A patent/IT1200902B/it active
-
1986
- 1986-05-07 EP EP86830112A patent/EP0226548A3/en not_active Withdrawn
- 1986-05-12 US US06/862,314 patent/US4754278A/en not_active Expired - Lifetime
- 1986-06-10 CA CA000511240A patent/CA1264841A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| IT8523262A0 (it) | 1985-12-18 |
| EP0226548A3 (en) | 1989-01-18 |
| US4754278A (en) | 1988-06-28 |
| IT1200902B (it) | 1989-01-27 |
| EP0226548A2 (en) | 1987-06-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |